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Message-Id: <20240813-b4-cleanup-h-of-node-put-other-v1-5-cfb67323a95c@linaro.org>
Date: Tue, 13 Aug 2024 15:09:51 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
Banajit Goswami <bgoswami@...cinc.com>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konradybcio@...nel.org>
Cc: alsa-devel@...a-project.org, linux-arm-msm@...r.kernel.org,
linux-kernel@...r.kernel.org,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 5/6] soc: qcom: pbs: use scoped device node handling to
simplify error paths
Obtain the device node reference with scoped/cleanup.h to reduce error
handling and make the code a bit simpler.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
drivers/soc/qcom/qcom-pbs.c | 16 ++++++----------
1 file changed, 6 insertions(+), 10 deletions(-)
diff --git a/drivers/soc/qcom/qcom-pbs.c b/drivers/soc/qcom/qcom-pbs.c
index 6af49b5060e5..77a70d3d0d0b 100644
--- a/drivers/soc/qcom/qcom-pbs.c
+++ b/drivers/soc/qcom/qcom-pbs.c
@@ -3,6 +3,7 @@
* Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
*/
+#include <linux/cleanup.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/module.h>
@@ -148,11 +149,11 @@ EXPORT_SYMBOL_GPL(qcom_pbs_trigger_event);
*/
struct pbs_dev *get_pbs_client_device(struct device *dev)
{
- struct device_node *pbs_dev_node;
struct platform_device *pdev;
struct pbs_dev *pbs;
- pbs_dev_node = of_parse_phandle(dev->of_node, "qcom,pbs", 0);
+ struct device_node *pbs_dev_node __free(device_node) = of_parse_phandle(dev->of_node,
+ "qcom,pbs", 0);
if (!pbs_dev_node) {
dev_err(dev, "Missing qcom,pbs property\n");
return ERR_PTR(-ENODEV);
@@ -161,28 +162,23 @@ struct pbs_dev *get_pbs_client_device(struct device *dev)
pdev = of_find_device_by_node(pbs_dev_node);
if (!pdev) {
dev_err(dev, "Unable to find PBS dev_node\n");
- pbs = ERR_PTR(-EPROBE_DEFER);
- goto out;
+ return ERR_PTR(-EPROBE_DEFER);
}
pbs = platform_get_drvdata(pdev);
if (!pbs) {
dev_err(dev, "Cannot get pbs instance from %s\n", dev_name(&pdev->dev));
platform_device_put(pdev);
- pbs = ERR_PTR(-EPROBE_DEFER);
- goto out;
+ return ERR_PTR(-EPROBE_DEFER);
}
pbs->link = device_link_add(dev, &pdev->dev, DL_FLAG_AUTOREMOVE_SUPPLIER);
if (!pbs->link) {
dev_err(&pdev->dev, "Failed to create device link to consumer %s\n", dev_name(dev));
platform_device_put(pdev);
- pbs = ERR_PTR(-EINVAL);
- goto out;
+ return ERR_PTR(-EINVAL);
}
-out:
- of_node_put(pbs_dev_node);
return pbs;
}
EXPORT_SYMBOL_GPL(get_pbs_client_device);
--
2.43.0
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